Beej

WordPress 3.0+ is great. It shows you your uploaded header images. 
It’s too bad it doesn’t let you delete them as well! 
The answer is here with a simple yet extremely useful little plugin called Delete Custom Header. 
Unlike WP’s “Remove Header” button, this plugin completely removes the header image data 
from the database and the files from the server.
For themes with a header option, like Twenty Ten, Twenty Eleven, etc.

Delete Custom Header

Delete uploaded header images and remove them from the database.

jonbullock

Applies the following simple search engine optimisations to your blog:
<ul>
<li>Shows “Site Title” in page title always no matter what content your viewing</li>
<li>Shows any content descriptor (page/post title etc.) first in page title</li>
<li>Uses post excerpt as value of “description” meta tag</li>
<li>Uses post tags as value of “keywords” meta tag</li>
<li>Uses tag name as value of “keywords” meta tag when viewing posts for a tag</li>
<li>Uses category name as value of “keywords” meta tag when viewing posts for a category</li>
<li>Uses date as value of “keywords” meta tag when viewing posts for a date</li>
</ul>
That’s it really, pretty simple stuff.

Basic-SEO

Applies basic search engine optimisations to your WordPress powered site.

Delete Custom Header vs Basic-SEO